Alert archive / North Dakota / Special Weather Statements in 2021

Special Weather Statement, NWS Bismarck, ND

June 6, 2021Oliver County, North Dakota

NWS Bismarck, ND issued this special weather statement at Jun 6, 2021, 2:02 AM CDT for Oliver County, North Dakota. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 6, 2021, 2:02 AM CDT (07:02 UTC)
Expired: Jun 6, 2021, 2:30 AM CDT
In force: 28 min
Issued by: NWS Bismarck, ND

County Oliver County, ND

The radar

The Bismarck radar (KBIS), 73 km from the middle of the area, began a volume at 07:02 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 7.0 hours before the alert went out and 77 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1639 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 3032 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 118 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Bismarck, ND wrote its last area forecast discussion before this special weather statement went out at Jun 6, 12:58 AM CDT, 1 hour 4 minutes earlier.

Area forecast discussion, Jun 6, 12:58 AM CDT, 1 hour 4 minutes before

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Hazardous weather outlook, Jun 6, 12:20 AM CDT, 1 hour 42 minutes before

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In the hours before

Special weather statement, Jun 6, 1:01 AM CDT, 1 hour 1 minute before

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Special weather statement, Jun 6, 1:27 AM CDT, 35 minutes before

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Special weather statement, Jun 6, 1:35 AM CDT, 27 minutes before

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Local storm report, Jun 6, 1:55 AM CDT, 7 minutes before

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Local storm report, Jun 6, 2:01 AM CDT, 1 minute before

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Special weather statement, Jun 6, 2:02 AM CDT, 0 minutes before

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The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 5, 9:25 PM CDT	Special Weather Statement	BIS	Billings, Bowman, Golden Valley, McKenzie, Slope, Williams	50 min
Jun 5, 9:36 PM CDT	Severe Thunderstorm Warning	BIS	Bowman, Golden Valley, Slope	39 min
Jun 5, 10:16 PM CDT	Special Weather Statement	BIS	Billings, Bowman, Golden Valley, McKenzie, Slope, Williams	44 min
Jun 5, 10:58 PM CDT	Special Weather Statement	BIS	Billings, Dunn, Mountrail, Stark	47 min
Jun 5, 11:08 PM CDT	Special Weather Statement	BIS	Slope	37 min
Jun 5, 11:11 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Stark	37 min
Jun 5, 11:41 PM CDT	Special Weather Statement	BIS	Bowman	34 min
Jun 5, 11:45 PM CDT	Special Weather Statement	BIS	McLean, Mercer, Morton, Oliver	45 min
Jun 5, 11:50 PM CDT	Special Weather Statement	BIS	Stark	40 min
Jun 5, 11:59 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Stark	46 min
Jun 6, 12:10 AM CDT	Special Weather Statement	BIS	Slope	35 min
Jun 6, 12:13 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Mercer, Oliver	62 min
Jun 6, 12:35 AM CDT	Special Weather Statement	BIS	Slope	25 min
Jun 6, 12:39 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Morton, Stark	51 min
Jun 6, 12:43 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Renville, Ward	47 min
Jun 6, 1:01 AM CDT	Special Weather Statement	BIS	Hettinger	29 min
Jun 6, 1:27 AM CDT	Special Weather Statement	BIS	Stark	33 min
Jun 6, 1:35 AM CDT	Special Weather Statement	BIS	McLean, Mercer, Sheridan	40 min
Jun 6, 1:52 AM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce, Sheridan, Wells	38 min
Jun 6, 3:09 AM CDT	Red Flag Warning	BIS	Billings, Bottineau, Burke, Burleigh, Divide, Dunn and 19 more	18 hr

Nearby

Special Weather Statements in North Dakota, 2021 Every special weather statement in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.